This paper modifies the magnetic RAM (MRAM) architecture by removing a current rectifier per cell without sacrificing performance. A read operation of stored data is maintained by introducing a simple concept of"virtual ground" of operational amplifier. The modified MRAM design offers a reduced element area and therefore achieves an over tenfold improvement in storage density. The proposed architecture has been proven operable by an engineering experiment
/lp/association-for-computing-machinery/a-modified-architecture-for-high-density-mram-xoEsE1dbbx